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參數(shù)資料
| 型號(hào)： | UDA1326PS |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | Codec |
| 英文描述： | USB AUDIO-CODEC(通用串行總線音頻編解碼器) |
| 中文描述： | USB音頻編解碼器（通用串行總線音頻編解碼器） |
| 文件頁(yè)數(shù)： | 8/43頁(yè) |
| 文件大?。?/td> | 678K |
| 代理商： | UDA1326PS |
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Philips
Semiconductors, Inc.
USB-CODEC UDA1325PS
Technical Report
DML98022
8
2.1
The USB-CODEC has a total of 6 General Purpose Input / Output (GPIO) pins which can be configured and
used for different functions such as I
S interfacing to an external DSP, Volume Up and Down, Tone Control or
Mute, Selecting terminal outputs (in this case MIC or LINE).
General Purpose I/O Pins and I/O Expander Pins
The GPIO pins of the USB-CODEC
μ
Controller can be used for:
Interface a maximum of 5 user definable resources.
Support I2S interface lines.
Selection of input terminals.
Support a ‘USB-CODEC configuration’ map selection.
Disconnect/Connect for bus-powered operation.
There are basically three different configurations for the GPIO pins possible that can be described as:
Regarding the recording-path there are 4 different topologies supported on the current
application board
and
UniCoDes
provided by Philips Semiconductors:
Analog input, No selector unit
Analog input, With selector unit
Digital input (I2S MUX input), No selector unit
Analog input (sample frequency pre-defined by an extra ADC-crystal), No selector unit
No digital I/O communication.
4-pin digital I/O communication.
6-pin digital I/O communication.
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